Swimmer profile
Clayton Marks
Male15-16UnattachedIA · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
25 Free SCY
—
—
—
11.18
50 Free SCY
28.33
26.52
▲ 1.81
24.25
▲ 2.27
23.16
▲ 1.09
100 Free SCY
1:05.22
1:00.27
▲ 4.95
55.71
▲ 4.56
51.83
▲ 3.88
200 Free SCY
2:32.34
2:19.09
▲ 13.25
2:07.52
▲ 11.57
—
500 Free SCY
—
6:49.61
—
5:50.94
▲ 58.67
50 Back SCY
37.76
33.63
▲ 4.13
—
—
100 Back SCY
1:33.19
1:18.27
▲ 14.92
1:11.62
▲ 6.65
1:01.32
▲ 10.30
200 Back SCY
—
—
—
2:29.28
50 Breast SCY
41.80
39.58
▲ 2.22
36.85
▲ 2.73
36.08
▲ 0.77
100 Breast SCY
—
1:26.63
1:18.26
▲ 8.37
—
200 Breast SCY
—
3:17.63
2:49.25
▲ 28.38
—
25 Fly SCY
—
—
—
22.25
50 Fly SCY
35.16
—
28.57
▲ 6.59
26.51
▲ 2.06
100 Fly SCY
—
1:09.11
1:02.29
▲ 6.82
1:02.33
▼ 0.04
100 IM SCY
1:27.90
1:15.22
▲ 12.68
—
—
200 IM SCY
2:57.26
2:35.74
▲ 21.52
—
2:25.26
▲ 10.48
Improvement<0.5s0.5–2s2–5s5s+Slower
📊 All Attempts by Event
Chronological history of every recorded swim. Click an event to expand its attempt list.